EP2045410A1 - Structural panel made of plaster - Google Patents

Structural panel made of plaster Download PDF

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Publication number
EP2045410A1
EP2045410A1 EP07117629A EP07117629A EP2045410A1 EP 2045410 A1 EP2045410 A1 EP 2045410A1 EP 07117629 A EP07117629 A EP 07117629A EP 07117629 A EP07117629 A EP 07117629A EP 2045410 A1 EP2045410 A1 EP 2045410A1
Authority
EP
European Patent Office
Prior art keywords
glass fiber
fiber fleece
coating
coated
titanium dioxide
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP07117629A
Other languages
German (de)
French (fr)
Inventor
Hans-Ulrich Prof. Hummel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Knauf Gips KG
Original Assignee
Knauf Gips KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Knauf Gips KG filed Critical Knauf Gips KG
Priority to EP07117629A priority Critical patent/EP2045410A1/en
Priority to SI200831622A priority patent/SI2193243T1/en
Priority to PCT/EP2008/063140 priority patent/WO2009047184A1/en
Priority to EP08804961.4A priority patent/EP2193243B1/en
Publication of EP2045410A1 publication Critical patent/EP2045410A1/en
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/04—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
    • E04C2/043—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres of plaster
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
    • A61L9/18—Radiation
    • A61L9/20—Ultraviolet radiation
    • A61L9/205—Ultraviolet radiation using a photocatalyst or photosensitiser
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
    • D21H13/36—Inorganic fibres or flakes
    • D21H13/38—Inorganic fibres or flakes siliceous
    • D21H13/40—Inorganic fibres or flakes siliceous vitreous, e.g. mineral wool, glass fibres
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments
    • D21H19/38—Coatings with pigments characterised by the pigments

Definitions

  • the present invention relates to a building board based on gypsum and process for their preparation.
  • Building boards based on gypsum are used on a large scale especially in the interior of buildings, especially for the production of ceilings and walls.
  • the usual building board based on gypsum is a so-called plasterboard, in which the plaster is covered on both sides with a cardboard layer.
  • plasterboard in which the plaster is covered on both sides with a cardboard layer.
  • cover with a cardboard have a cover with a nonwoven.
  • cover with a nonwoven Such are for example in the EP 0 755 903 A1 described.
  • the present invention therefore has the object of providing materials to reduce the pollution of indoor spaces with air pollutants and odors.
  • the object is achieved by a building board based on gypsum with a cover made of glass fiber fleece on both main surfaces, characterized in that the glass fiber fleece on at least one of the two main surfaces has a coating containing photocatalytically active titanium dioxide.
  • this is a building board with a glass-fiber fleece cover on both sides, wherein at least one side has a coating which contains photocatalytically active titanium dioxide on the outside.
  • Photocatalytic materials are semiconductors in which under the action of light electron-hole pairs are formed, which can cause redox reactions on the surface with various air constituents.
  • a titanium dioxide is preferably used, as in the EP 1 178 011 A1 .
  • EP 1 254 863 and in particular in the WO 2005/108505 is described.
  • Typical contents of the photocatalytically active titanium dioxide in the glass fiber fleece are up to 25% by weight.
  • the coating of the glass fiber fleece must on the one hand allow a good bond to the gypsum core, on the other hand, the photocatalytically active titanium dioxide firmly bind but not include so that it encloses this completely and opaque.
  • the photocatalytically active titanium dioxide is preferably present as a coating component on the side of the building board facing away from the gypsum core.
  • the product may contain common auxiliaries such as plasticizers, fungicides, etc.
  • the invention also provides a method for removing air pollutants or odors from interior spaces, comprising the step of attaching a building board according to the invention in an interior and the use of the building board according to the invention for reducing indoor air pollutants and odors.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Architecture (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Veterinary Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Epidemiology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Finishing Walls (AREA)
  • Catalysts (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)

Abstract

Building slab based on gypsum comprises a cover made of glass threads on both main surfaces, where: the glass threads comprise a coating on at least one of the two main surfaces; and the coating contains optimized photocatalytically active titanium dioxide. An independent claim is included for preparing the building slab comprising providing the glass threads with the coating, loading a coated/uncoated glass threads with a hardenable calcium sulfate mixture, subsequently covering with a coated/uncoated glass threads and cutting and drying, after initiation of the hardening is carried out, where at least one of the main surface of the building slab comprises a coated glass thread.

Description

Die vorliegende Erfindung betrifft eine Bauplatte auf Basis von Gips und Verfahren zu ihrer Herstellung.The present invention relates to a building board based on gypsum and process for their preparation.

Bauplatten auf Basis von Gips werden im großen Umfang insbesondere im Innenausbau von Gebäuden eingesetzt, insbesondere zur Herstellung von Decken und Wänden.Building boards based on gypsum are used on a large scale especially in the interior of buildings, especially for the production of ceilings and walls.

Die übliche Bauplatte auf Basis von Gips ist eine sogenannte Gipskartonplatte, bei der die Gipsmasse beidseitig mit einer Kartonschicht abgedeckt ist. Es sind verschiedene Spezialplatten bekannt, die beispielsweise statt einer Abdeckung mit einem Karton eine Abdeckung mit einem Vlies aufweisen. Solche sind beispielsweise in der EP 0 755 903 A1 beschrieben.The usual building board based on gypsum is a so-called plasterboard, in which the plaster is covered on both sides with a cardboard layer. There are various special plates are known, for example, instead of a cover with a cardboard have a cover with a nonwoven. Such are for example in the EP 0 755 903 A1 described.

Die steigenden Anforderungen an die Wärmedämmung von Gebäuden führen dazu, dass die Gebäude annähernd "luftdicht" gegen die Außenwelt abgeschlossen sind und sich daher die Luftwechselraten in den Räumen stark reduziert haben. Hierdurch werden Belastungen durch Gerüche und Luftschadstoffe zu einem vermehrten Problem.The increasing demands on the thermal insulation of buildings mean that the buildings are almost "airtight" against the outside world completed and therefore the air exchange rates in the rooms have greatly reduced. As a result, exposure to odors and air pollutants are becoming an increasing problem.

Die vorliegende Erfindung hat sich daher die Aufgabe gestellt, Materialien bereitzustellen, um die Belastungen von Innenräumen mit Luftschadstoffen und Gerüchen zu verringern.The present invention therefore has the object of providing materials to reduce the pollution of indoor spaces with air pollutants and odors.

Gelöst wird die Aufgabe durch eine Bauplatte auf Basis von Gips mit einer Abdeckung aus Glasfaservlies auf beiden Hauptflächen, dadurch gekennzeichnet, dass das Glasfaservlies auf mindestens einer der beiden Hauptflächen eine Beschichtung aufweist, die photokatalytisch aktives Titandioxid enthält.The object is achieved by a building board based on gypsum with a cover made of glass fiber fleece on both main surfaces, characterized in that the glass fiber fleece on at least one of the two main surfaces has a coating containing photocatalytically active titanium dioxide.

Erfindungsgemäß handelt es sich um eine Bauplatte mit einer beidseitigen Glasfaservliesabdeckung, wobei zumindest eine Seite eine Beschichtung aufweist, die photokatalytisch aktives auf der Außenseite Titandioxid enthält.According to the invention, this is a building board with a glass-fiber fleece cover on both sides, wherein at least one side has a coating which contains photocatalytically active titanium dioxide on the outside.

Photokatalytische Materialien sind Halbleiter, bei denen unter Lichteinwirkung Elektronen-Loch-Paare entstehen, welche an der Oberfläche mit diversen Luftbestandteilen Redox-Reaktionen hervorrufen können.Photocatalytic materials are semiconductors in which under the action of light electron-hole pairs are formed, which can cause redox reactions on the surface with various air constituents.

Als photokatalytisch aktives Titandioxid wird bevorzugt ein Titandioxid eingesetzt, wie es in der EP 1 178 011 A1 , EP 1 254 863 und insbesondere in der WO 2005/108505 beschrieben ist.As a photocatalytically active titanium dioxide, a titanium dioxide is preferably used, as in the EP 1 178 011 A1 . EP 1 254 863 and in particular in the WO 2005/108505 is described.

Typische Gehalte des photokatalytisch aktiven Titandioxids im Glasfaservlies betragen bis zu 25 Gew.-%.Typical contents of the photocatalytically active titanium dioxide in the glass fiber fleece are up to 25% by weight.

Die Beschichtung des Glasfaservlieses muss zum einen eine gute Bindung an den Gipskern erlauben, auf der anderen Seite das photokatalytisch aktive Titandioxid fest binden aber nicht so einschließen, dass es dieses komplett und lichtundurchlässig umschließt. Das photokatalytisch aktive Titandioxid befindet sich bevorzugt als Coatingbestandteil auf der dem Gipskern abgewandten Seite der Bauplatte.The coating of the glass fiber fleece must on the one hand allow a good bond to the gypsum core, on the other hand, the photocatalytically active titanium dioxide firmly bind but not include so that it encloses this completely and opaque. The photocatalytically active titanium dioxide is preferably present as a coating component on the side of the building board facing away from the gypsum core.

Eine besonders geeignet Zusammensetzung eines Coatings für ein Glasfaservlies weist folgende Zusammensetzung auf:

  • 0 bis 30 Gew.-% Füllstoff wie Calciumsulfatanhydrit oder Kalksteinmehl
  • 0 bis 6 Gew.-% organisches Bindemittel, insbesondere Polyvinylacetat
  • 0 bis 90 Gew.-% Titandioxid (photokatalytisch aktiv)
  • 0,01 bis 0,8 Gew.-% Celluloseether
  • 0,01 bis 1,0 Gew.-% Verflüssiger, maximal 0,2 Gew.-% Netzmittel.
A particularly suitable composition of a coating for a glass fiber fleece has the following composition:
  • 0 to 30 wt .-% filler such as calcium sulfate anhydrite or limestone powder
  • 0 to 6 wt .-% organic binder, in particular polyvinyl acetate
  • 0 to 90% by weight of titanium dioxide (photocatalytically active)
  • 0.01 to 0.8% by weight of cellulose ether
  • 0.01 to 1.0% by weight of plasticizer, maximum 0.2% by weight of wetting agent.

Zusätzlich kann das Produkt übliche Hilfsmittel wie Plastifizierer, Fungizide, etc. enthalten.In addition, the product may contain common auxiliaries such as plasticizers, fungicides, etc.

Als Verfahren zur Herstellung hat sich insbesondere ein Verfahren erwiesen, das folgende Schritte aufweist:

  • ein Glasfaservlies mit einer Beschichtung auf der dem Gipskern abgewandten Seite versehen wird, die photokatalytisch aktives Titandioxid enthält,
  • ein beschichtetes oder unbeschichtetes Glasfaservlies mit einem abbindefähigen Calciumsulfatgemisch beladen wird,
  • anschließend mit einem beschichteten oder unbeschichteten Glasfaservlies abgedeckt wird,
  • nach dem Beginn des Abbindens geschnitten und getrocknet wird;
wobei mindestens eine der Hauptflächen der Bauplatte ein beschichtetes Glasfaservlies aufweist.As a method for the production, in particular a method has been found which comprises the following steps:
  • a glass fiber fleece is provided with a coating on the side facing away from the gypsum core, which contains photocatalytically active titanium dioxide,
  • a coated or uncoated glass fiber fleece is loaded with a settable calcium sulphate mixture,
  • subsequently covered with a coated or uncoated glass fiber fleece,
  • after the onset of setting, cut and dried;
wherein at least one of the main surfaces of the building panel comprises a coated fiberglass mat.

Gegenstand der Erfindung ist auch ein Verfahren zur Entfernung von Luftschadstoffen oder Gerüchen aus Innenräume, umfassend den Schritt des Anbringens einer erfindungsgemäßen Bauplatte in einem Innenraum sowie die Verwendung der erfindungsgemäßen Bauplatte zur Verringerung von Luftschadstoffen und Gerüchen in Innenräumen.The invention also provides a method for removing air pollutants or odors from interior spaces, comprising the step of attaching a building board according to the invention in an interior and the use of the building board according to the invention for reducing indoor air pollutants and odors.

Claims (7)

Bauplatte auf Basis von Gips mit einer Abdeckung aus Glasfaservlies auf beiden Hauptflächen, dadurch gekennzeichnet, dass das Glasfaservlies auf mindestens einer der beiden Hauptflächen eine Beschichtung aufweist, die optimiertes photokatalytisch aktives Titandioxid enthält.Building board based on gypsum with a cover made of glass fiber fleece on both main surfaces, characterized in that the glass fiber fleece on at least one of the two main surfaces has a coating containing optimized photocatalytically active titanium dioxide. Bauplatte nach Anspruch 1, dadurch gekennzeichnet, dass die Beschichtung bis 90 Gew.-% photokatalytisch aktives Titandioxid enthält.Building board according to claim 1, characterized in that the coating contains up to 90 wt .-% photocatalytically active titanium dioxide. Bauplatte nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Beschichtung des Glasfaservlieses folgende weitere Bestandteile aufweist: - 0 bis 30 Gew.-% eines inerten Füllstoffes wie Calciumsulfat-Anhydrit oder Kalksteinmehl, - 0,01 bis 0,8 Gew.-% Celluloseether, - 0,01 bis 1,0 Gew.-% Verflüssiger, - bis 0,2 Gew.-% Netzmittel. Building board according to claim 1 or 2, characterized in that the coating of the glass fiber fleece has the following further constituents: From 0 to 30% by weight of an inert filler, such as calcium sulfate anhydrite or limestone powder, 0.01 to 0.8% by weight of cellulose ether, 0.01 to 1.0% by weight of liquefier, - up to 0.2 wt .-% wetting agent. Bauplatte nach mindestens einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Beschichtung ein Flächengewicht von 280 bis 330 g/m2 hat.Building panel according to at least one of claims 1 to 3, characterized in that the coating has a basis weight of 280 to 330 g / m 2 . Verfahren zur Herstellung einer Bauplatte nach mindestens einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass - ein Glasfaservlies mit einer Beschichtung versehen wird, die optimiertes photokatalytisch aktives Titandioxid enthält. - ein beschichtetes oder unbeschichtetes Glasfaservlies mit einem abbindefähigen Calciumsulfatgemisch beladen wird - anschließend mit einem beschichteten oder unbeschichteten Glasfaservlies abgedeckt wird - nach dem Beginn des Abbindens geschnitten und getrocknet wird; wobei mindestens eine der Hauptflächen der Bauplatte ein beschichtetes Glasfaservlies aufweist.Method for producing a building board according to at least one of claims 1 to 4, characterized in that - A glass fiber fleece is provided with a coating containing optimized photocatalytically active titanium dioxide. - Loading a coated or uncoated glass fiber fleece with a settable calcium sulfate mixture - Then covered with a coated or uncoated glass fiber fleece - cut after the onset of setting and dried; wherein at least one of the main surfaces of the building panel comprises a coated fiberglass mat. Verfahren zur Verringerung von Luftschadstoffen oder Gerüchen umfassend den Schritt des Anbringens einer Bauplatte nach mindestens einem der Ansprüche 1 bis 4 im Innenraum.A method for reducing air pollutants or odors comprising the step of attaching a building panel according to at least one of claims 1 to 4 in the interior. Verwendung einer Bauplatte nach mindestens einem der Ansprüche 1 bis 4 zur Verringerung von Luftschadstoffen und Gerüchen in Innenräumen.Use of a building panel according to at least one of claims 1 to 4 for reducing air pollutants and odors indoors.
EP07117629A 2007-10-01 2007-10-01 Structural panel made of plaster Withdrawn EP2045410A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP07117629A EP2045410A1 (en) 2007-10-01 2007-10-01 Structural panel made of plaster
SI200831622A SI2193243T1 (en) 2007-10-01 2008-10-01 Structural panel made of plaster
PCT/EP2008/063140 WO2009047184A1 (en) 2007-10-01 2008-10-01 Gypsum-based building panel
EP08804961.4A EP2193243B1 (en) 2007-10-01 2008-10-01 Structural panel made of plaster

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07117629A EP2045410A1 (en) 2007-10-01 2007-10-01 Structural panel made of plaster

Publications (1)

Publication Number Publication Date
EP2045410A1 true EP2045410A1 (en) 2009-04-08

Family

ID=39213251

Family Applications (2)

Application Number Title Priority Date Filing Date
EP07117629A Withdrawn EP2045410A1 (en) 2007-10-01 2007-10-01 Structural panel made of plaster
EP08804961.4A Not-in-force EP2193243B1 (en) 2007-10-01 2008-10-01 Structural panel made of plaster

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP08804961.4A Not-in-force EP2193243B1 (en) 2007-10-01 2008-10-01 Structural panel made of plaster

Country Status (3)

Country Link
EP (2) EP2045410A1 (en)
SI (1) SI2193243T1 (en)
WO (1) WO2009047184A1 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0590477A1 (en) * 1992-09-22 1994-04-06 Takenaka Corporation Architectural material using metal oxide exhibiting photocatalytic activity
DE10149414A1 (en) * 2001-10-06 2003-04-17 Knauf Westdeutsche Gips Ceiling boards based on gypsum plaster or fiber board comprise holes filled with vessels or covered on the wall side with flat elements containing latent heat accumulators, fire-extinguishing agents, intumescent substances, and fragrances
WO2006059699A1 (en) * 2004-12-03 2006-06-08 Mitsubishi Paper Mills Limited Non-woven fabric for gypsum board and method for production thereof
DE202006014693U1 (en) * 2005-07-04 2007-02-15 Hülsta-Werke Hüls Gmbh & Co. Kg Floor, wall or ceiling panel or strip has component designed to reduce air pollutants or smoke contained in coating
DE102006022083B3 (en) * 2006-05-11 2007-08-23 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Construction unit for sound absorption and air treatment, has area turned front and area turned away back, where backside is coated with photo-catalytically active material
DE102006009847A1 (en) * 2006-03-01 2007-09-06 Sweredjuk, Robert, Dr. Process of absorbing pollutants and odors

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0590477A1 (en) * 1992-09-22 1994-04-06 Takenaka Corporation Architectural material using metal oxide exhibiting photocatalytic activity
DE10149414A1 (en) * 2001-10-06 2003-04-17 Knauf Westdeutsche Gips Ceiling boards based on gypsum plaster or fiber board comprise holes filled with vessels or covered on the wall side with flat elements containing latent heat accumulators, fire-extinguishing agents, intumescent substances, and fragrances
WO2006059699A1 (en) * 2004-12-03 2006-06-08 Mitsubishi Paper Mills Limited Non-woven fabric for gypsum board and method for production thereof
US20070298235A1 (en) * 2004-12-03 2007-12-27 Mitsubishi Paper Mills Limited Non-Woven Fabric for Gypsum Board and Process for Producing the Same
DE202006014693U1 (en) * 2005-07-04 2007-02-15 Hülsta-Werke Hüls Gmbh & Co. Kg Floor, wall or ceiling panel or strip has component designed to reduce air pollutants or smoke contained in coating
DE102006009847A1 (en) * 2006-03-01 2007-09-06 Sweredjuk, Robert, Dr. Process of absorbing pollutants and odors
DE102006022083B3 (en) * 2006-05-11 2007-08-23 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Construction unit for sound absorption and air treatment, has area turned front and area turned away back, where backside is coated with photo-catalytically active material

Also Published As

Publication number Publication date
EP2193243A1 (en) 2010-06-09
WO2009047184A1 (en) 2009-04-16
SI2193243T1 (en) 2016-07-29
EP2193243B1 (en) 2016-03-16

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